Around the globe, Casalas (Casalas 
) is an extremely rare unknown gender first name. More prevalently, Casalas is the last name as well as the forename.
Ana, Nestor, Óscar, Mariano, Marcela, Marcelo, Silvana, Claudia, Gabriel, Nelson, Gonzalo, Emanuel, Orlando, Marianna, Carolina, Jennifer, Jeronimo, Nattalia, Fernando, Esteban, German, Daniel, Roxana, Sara, Luis, Juan, Maria, Selma, Bruna, Ramon, Lucas, Julio, Marita, Monica, Miguel, Sandra, Alicia, Andrea, Angela, Belén, Rosana, Romina, Alejandro, and Valentina